<template>
  <div>

    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索框添加区域 -->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUsersList()">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getUsersList()"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary"
                     @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="usersList"
                border
                stripe>
        <el-table-column type="index"
                         label="#"></el-table-column>
        <el-table-column label="姓名"
                         prop="username"></el-table-column>
        <el-table-column label="邮箱"
                         prop="email"></el-table-column>
        <el-table-column label="电话"
                         prop="mobile"></el-table-column>
        <el-table-column label="角色"
                         prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch v-model="scope.row.mg_state"
                       @change="userStateChange(scope)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作"
                         width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"
                       @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeUserById(scope.row.id)"></el-button>

            <el-tooltip effect="dark"
                        content="分配角色"
                        placement="top"
                        :enterable="false">
              <!-- 分配角色 -->
              <el-button type="warning"
                         icon="el-icon-setting"
                         size="mini"
                         @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[1 ,2, 5, 10]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户"
               :visible.sync="addDialogVisible"
               width="50%"
               @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <!-- 表单区域 -->
      <el-form label-width="70px"
               :model="addForm"
               :rules="addFormRules"
               ref="addFormRef"
               status-icon>

        <!-- 用户名 -->
        <el-form-item label="用户名"
                      prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码"
                      prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱"
                      prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <!-- 手机 -->
        <el-form-item label="手机"
                      prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>

      </el-form>
      <!-- 局部区域 -->
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户"
               :visible.sync="editDialogVisible"
               width="50%"
               @close="editDialogClosed">
      <!-- 内容主体区域 -->
      <!-- 表单区域 -->
      <el-form label-width="70px"
               :model="editForm"
               :rules="editFormRules"
               ref="editFormRef"
               status-icon>

        <!-- 用户名 -->
        <el-form-item label="用户名">
          <el-input v-model="editForm.username"
                    disabled></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱"
                      prop="email"
                      inline-message>
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <!-- 手机 -->
        <el-form-item label="手机"
                      prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>

      </el-form>
      <!-- 局部区域 -->
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="editUser">确 定</el-button>
      </span>
    </el-dialog>

    <!--分配角色的对话框
               @close="setRightDialogClosed" -->
    <el-dialog title="分配角色"
               :visible.sync="setRoleDialogVisible"
               width="50%"
               @close="setRoleDialogClosed">
      <!-- 分配角色区域 -->
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId"
                     placeholder="请选择">
            <el-option v-for="item in rolesList"
                       :key="item.id"
                       :label="item.roleName"
                       :value="item.id">
            </el-option>
          </el-select>

        </p>
      </div>
      <!-- 局部区域 -->
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的自定义规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机的自定义规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }
    return {
      usersList: [],
      // 数据总数
      total: 0,
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示条数
        pagesize: 2
      },
      // 添加用户弹窗的显示隐藏 false是隐藏
      addDialogVisible: false,
      // 修改用户弹窗的显示隐藏 false是隐藏
      editDialogVisible: false,
      // 分配角色弹窗的显示隐藏
      setRoleDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''

      },
      // 修改用户的表单数据
      editForm: {},
      // 分配角色的对应信息
      userInfo: {},
      // 循环展示所有角色的列表
      rolesList: [],
      // 分配角色中选中角色的id
      selectedRoleId: '',
      // 添加表单的规则验证
      addFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改表单的规则验证
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    // 获取用户信息
    this.getUsersList()
  },
  methods: {
    // 获取用户信息
    async getUsersList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.usersList = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变的事件
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUsersList()
    },
    // 监听页码值改变的事件
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUsersList()
    },
    // 用户状态change事件
    async userStateChange (val) {
      console.log(['scope对象', val])
      val = val.row
      const { data: res } = await this.$http.put(`users/${val.id}/state/${val.mg_state}`)
      console.log(res)
      if (res.meta.status !== 200) {
        val.mg_state = !val.mg_state
        return this.$message.error('更新状态失败！')
      }
      this.$message.success('更新状态成功！')
    },
    // 监听添加用户对话框的事件
    addDialogClosed () {
      // 对话框关闭时清空表单的数据
      this.$refs.addFormRef.resetFields()
    },
    // 监听修改用户对话框的事件
    editDialogClosed () {
      // 对话框关闭时清空表单的数据
      this.$refs.editFormRef.resetFields()
    },
    // 点击确认按钮添加用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return
        // 如果valid为true就可以发生添加用户的网络请求了
        const { data: res } = await this.$http.post('users', this.addForm)
        console.log(res)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        // 添加用户成功后隐藏对话框
        this.addDialogVisible = false
        // 重新获得用户列表数据
        this.getUsersList()
      })
    },
    // 点击修改按钮修改用户信息
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return
        // 如果valid为true就可以发生修改用户的网络请求了
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error('修改用户失败')
        this.$message.success('修改用户成功')
        // 修改用户成功后隐藏对话框
        this.editDialogVisible = false
        // 重新获得用户列表数据
        this.getUsersList()
      })
    },
    // 点击修改按钮后显示修改用户表单
    async showEditDialog (id) {
      this.editDialogVisible = true
      console.log('当前修改用户的id为' + id)
      const { data: res } = await this.$http.get('users/' + id)
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败')
      this.editForm = res.data
    },
    // 删除用户
    async removeUserById (id) {
      console.log(id)
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // confirmResult  点击确认返回 confirm
      // confirmResult  点击取消返回 cancel
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      // 发生删除用户请求
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('删除用户成功')
      this.getUsersList()
    },
    // 分配角色
    async setRole (userInfo) {
      this.userInfo = userInfo

      // 获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.rolesList = res.data
      console.log(this.rolesList)
      this.setRoleDialogVisible = true
    },
    // 点击按钮 分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')

      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success('更新角色成功！')
      this.getUsersList()
      this.setRoleDialogVisible = false
    },
    // 分配角色对话框关闭后 清空对应的数据
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}

</script>

<style lang="less" scoped>
</style>
